Switch



C. F. CUNO.

SWITCH.

APPLICATION FILED HEB. 12, 1920.

1,429,326 Patentedsep t. 19,1922.

Patented Sept. 19, 1922.

CHARLES F. CUNO, OF MERIDEN, CONNECTICUT SWITCH.

Application filed February 12, 1920.. Serial No. 358,043.

To all whom it may concern:

Be it known that 1, CHARLES F. CUNo, a citizen of the United States of America, residing at Meriden, Connecticut, have invented-a new and useful Switch, of which the following is a specification.

My invention relates to electric switches of the type set forth in my former Patent #1497500, dated Sept. 12th, 1916.

The object of the present invention is to improve and cheapen the aforesaid construction without sacrifice to quality or efiiciency.

In the drawings: 1

Fig. l is a plan view of certain parts.

Fig. 2 is a cross section on the line 2-2 of Fig. 1. c

Fig. 3 is a side elevation of the completed article partly broken away.

Fig. 4 is a View of the underside of the part shown in Fig. 2.

1 represents the switch housing. 2 represents a blade switch. 3-3 represent the binding post ends of two terminals shown in dotted lines within the housing 1, which terminals are to be connected and disconnected by the blade switch 2. 4 represents a cover for the housing. 5 represents a tube on the housing 4. 6 represents a cap for the outer end of the tube. 7 represents a plunger connecting the cap with the blade switch 2. 8 represents a spring within the tube 5, one end of the spring resting on the cover plate 4 and the other end resting against the inner side of the cap 6. The normal action of the spring 8 is to retract the plunger 7 so as to hold the blade switch 2 in the off position. When the cap 6 is pressed in it slides on the tube 5 and forces the plunger? and blade switch 2 toward the contact terminals so as to close the circuit through the latter. The tube 5 is made from sheet metal rolled into tubular form. The lower edge of the tube thus formed is cut away at intervals to form lugs thereon. These lugs are spaced apart and are de-'4b signed to project through corresponding .openings in the cover plate 4 so that by being ofi'set as shown in Fig. 4, the tube will be securely connected to said cover plate. It

is preferred that one of the lugs should be formed partially on one side of the seam on the tube and partially on the other side, this lug being indicated at 9, Fig. 4, hence when this two-piece lug is projected through its corresponding'opening it will tend to draw the two edges of the tube where the seam is formed tightly together so as to hold the same securely in this position. The cap (5 overstanding the outer end of the tube tends to prevent the tube from spread- '60 ing open at that end.

What I claim is:

In a switch of the character described, a housing, a switch mechanism contained therein, a cover plate therefor, a tube formed 6-5 from sheet metal and having a seam on one side, said tube being mounted on said cover plate, lugs on the lower end of said tube for interconnection with the cover plate, certain of said lugs being formed on opposite sides of the seam and adjacent thereto whereby when said tube is connected to said cover plate said lugs will hold said tube against opening at the lower end, a slidable cap mounted on the other end and 7 overstanding the outside of the tube to prevent the latter from opening at the seam on that end.

CHARLES F. CUNO. 

